import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue';
import Home from '../components/Home.vue';
import Welcome from '../components/Welcome';
import Users from '../components/user/Users.vue';
import Rights from '../components/power/Rights.vue';
import Roles from '../components/power/Roles.vue';
import Cate from '../components/goods/Cate.vue';
import Params from '../components/goods/Params.vue';
import List from '../components/goods/List.vue';
import Add from '../components/goods/Add.vue';
import Order from '../components/order/Order.vue';
import Report from '../components/report/Report.vue';

Vue.use(VueRouter)

const routes = [
  { path: "/", redirect: '/login' },
  { path: "/login", component: Login },
  {
      path: "/home", 
      component: Home, 
      redirect:'/welcome',
      children: [
        { path: "/welcome", component: Welcome },
        { path: "/users", component:Users},
        { path: "/rights", component:Rights},
        { path: "/roles", component:Roles},
        { path: "/categories", component:Cate},
        { path: "/params", component:Params},
        { path: "/goods", component:List},
        { path: "/goods/add", component:Add},
        { path: "/orders", component:Order},
        { path: "/reports", component:Report},
      ]
  }
]

const router = new VueRouter({
  routes
})

//挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 代表将要访问的路径
  //from:表示从哪个路径跳转而来
  //next是一个函数，表示放行
  // next() 放行 next('/login')强制跳转
  if (to.path === '/login') return next()
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})

export default router
